When comparing Qt vs Onsen UI, the Slant community recommends Onsen UI for most people. In the question“What are the best frameworks for developing cross-platform mobile apps with JavaScript?” Onsen UI is ranked 4th while Qt is ranked 9th. The most important reason people chose Onsen UI is:
Onsen UI is open source, and completely free to use.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Open-source
Pro Global community
The community behind Qt is both massive and approachable. Digia (also owners) are joined by the likes of Intel, KDAB, ICS, Canonical and numerous others in sponsoring development, while communities such as KDE also contribute significantly. Forums are active, mailing lists are open, irc channels chatting, git repositories well managed. Answers to questions are usually minutes away.
Pro Good documentation
Professional, thorough documentation with examples, available either in a web browser or in the stand-alone desktop client called assistant.
Pro Open source and free
Onsen UI is open source, and completely free to use.
Pro Can be used for web apps as well
Onsen UI is usable for classic web development as well as mobile.
Pro Large selection of components
Onsen UI provides a wide selection of components that are ready to use out of the box and are easily customizable.
Pro Easy to use
Onsen UI provides very clear, well-written and detailed documentation.
It uses popular technologies that are likely already familiar to developers (such as jQuery and Angular).
The framework is semantic and intuitive to use, making it quite fast to learn.
Pro Supports React
React is the most trending front-end UI framework, naturally supporting that is a plus.